SB2018122902 - Denial of service in libcaca

Description

This security bulletin contains information about 1 vulnerability.

1) Improper input validation (CVE-ID: CVE-2018-20549)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear

The vulnerability allows a local attacker to cause DoS condition on the target system.

The vulnerability exists in the caca_file_read function, as defined in the caca/file.c file due to insufficient validation of user-supplied input. A local attacker can execute a file that submits malicious input, trigger an illegal write memory access condition that can be used to cause a DoS condition.

Remediation

Install update from vendor's website.

References

• https://github.com/cacalabs/libcaca/issues/41
• https://bugzilla.redhat.com/show_bug.cgi?id=1652628